Shaft-rotating means.



W. H. YOST.

SHAFT ROTATNG MEANS.l APPLICATION FILED DEc.9. I9I`2.

Patented spt. 11,1917.`

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2 SHEETS--SHEET l.

w. H. YosT. "SHAFT ROTAHNG MEANS.

APPLICATION FILED DEC.9. 1912.

Patented Sept. 11, '1917.

2 SHEETS-SHEET 2.

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WINFIELD HANCOCK YOST, OF MONTREAL, QUEBEC, CANADA.

Y SHAFT-ROTATING MEANS.

Specification of Letters Patent.

Patented Sept. 11, 1917;.

Application led December' 9, 1912. Serial No. 735,798.

To all whom t may concern Be it known that I, WiNrmLD HANCOCK Yos'r, acitizen of the United States, residing at Montreal, Province of Quebec,Canada, have invented certain new and useful Improvements inShaft-Rotating Means; and l do hereby declare that the following is afull, clear, and exact description of the SZLIIIQ.

This invention relates to shaft rotating means of the type in whichrotation of the shaft is effected by an oscillating or reciproeatingdevice adapted to alternately engage with and disengage therefrom, andfurther to manually operated devices of the above type in which themanually operatedmember is adapted to remain out of operative relationwith, and adjacent to the shaft when the device is not in operation.

The invention has for anobjectfto provide a simple and easily adjustedand operated device of this type whereby the shaft may be rotated ineither direction as desired.

Figure 1 is a plan view of the device, the shaft to vwhich it is appliedbeing shown in transverse section.

Fig. 2 is aside elevation thereof,

Fig. 3 is a vertical section on the line 3 3 Fig. 1.

Figs. 4 and 5 are perspective views respectively of the saddle carryingthe lever and the arm on which it is mounted.

The shaft to be rotated is shown at 1 and may be employed as the brakemast of a car, a door operating shaft or applied to other purposes. A

Secured upon the shaft by suitable means as the key 2 is an equal facedratchetlwheel, or star4 wheel, 3 which may be further secured to theshaft. by means of a bolt 4f passing through the elongated hub of theratchet wheel. This ratchet wheel is adapted to be engaged and operatedto rotate the shaft by a reciprocating or oscillating lever or handle 5fulcrumed between its ends in a manner to bepresently pointed out, theportion thereof between the fulcrum and ratchet wheel comprising areversible double faced pawl 6.

This lever 5 is carried upon a bracket arm or carrier pivoted at one endupon the shaft, this carrier as here shown being formed by a two piecestrap 7 loosely encircling the elongated hub 8 of the ratchet wheel, aflange 9 on the hub preventing longitudinal displacement of the carrier.

In operation the lever is adapted to alternately engage with anddisengage from the ratchet as it is moved bach and forth and rotate theshaft step by step, the lever being' mounted by means of a universaljoint in a manner both to have lost motion between itself and thecarrier, to cause it to engage and disengage upon reciprocating, andalso to permit of the shifting thereof to reverse the position of thepawl with respect to the ratchet wheel to enable the ratchet wheel to berotated in either direction as desired, the position of the lever whenthe shaft is being rotated in different directions being indicatedrespectively by the full lines and chain lines in Fig. 1.

As here shown a saddle 15 is mounted on the end of the carrier 7 bymeans of a bolt 16 passing through registering perforations 17 and 18 inthe carrier ends and saddle respectively, the saddle straddling the endof the carrier and being pivoted to swing in a plane common to the axisof the shaft. Projecting upwardly from the saddle and integral therewithis a hollow boss 19 upon which the lever vis fulcrumed on an aXisparallel to the shaft axis, the lever being retained in position uponthe boss by means ofthe bolt 20 with the nut and washer 21 thereon.

To limit the lost motion between the lever and carrier to that necessaryto cause the pawl to clear the ratchet wheel a lug 29. is formed on thelever and engages the front of the saddle when the pawl has cleared theratchet wheel, which lug may be duplicated as shown so that the levermay be placed in position with either side thereof turned to ward thesaddle.

In operation the lever is swung upon its universal joint until itengages the ratchet wheel, the engagement of the saddle 15 with theupper face of the carrier limiting the movement of the lever on the bolt16 when it is in line with the ratchet wheel. The lever is thenreciprecated and alternately engages with and rotates the ratchet anddisengages and moves back independently of the ratchet, the lever firstswinging on the boss 19 until the lug 22 bears against the saddle andcauses the lever and carrier to swing together on the shaft.

If the direction of rotation of the shaft is to be changed it is onlynecessary to swing the lever on the bolt 1G untilvit clears the ratchetwhen it may be shifted from one position to the other as will be readilyseen from the chain line position of the lever inV Fig. l the lug 22assumes the proper position with respect to the saddle to permit thelimited lost motion when the lever' is in either position.

l/Vhen not in use the lever hangs alongside the shaft as shown in dottedlines in Fig. 9.

It will be noted that the saddle 15 in addition to its function as amember' of the universal joint, also serves to brace the ends of thestrap forming the carrier.

W'hat I claim is as follows:

l. rIhe combination with a shaft, of a ratchet wheel fixed thereon, anarm pivoted concentrieally thereto, a saddle pivoted upon and straddlingthe en d of said arm, and a lever fulcrumed between itsends upon sucharm, such lever having one end constituting a lreversible pawl adaptedto engage and rotate the said ratchet wheel in either direction andmeans providing a universal `joint connection between such lever andarm, such means including a saddle pivoted upon and straddling-the endof the said arm and having the lever pivotcd thereto, for the pur- Y Apose set forth.

2. The combination. with va shaft and a toothed wheel upon the shaft, ofan arm piv- `leveris permitted two swinging and operative movementsindependently of the arm and in two distinct directions with relation tosuch arm.

3. The combination with a. shaft, of a carrier and a lever supported bysaid carrier and adapted to rota-te the shaft in either direction, suchlever having a swinging movelment transversely of the shaft and inde-Uopies of this patent may be obtained for pendently of the carrier and aswinging movement in the longitudinal line of the shaft andindependently .of the carrier.

4t. The combination with a shaft, of a carrier and a lever supported bysaid carrier and adapted to rotate the shaft in either direction, `suchlever having a horizontal swinging movement independently of the carrierand a vertical swinging movement independently of the carrier.

5. The combination with Va shaft, of a ratchet wheel Xed thereon, an armpivoted oted concentrically-thereto, a lever Vadapted Y to engage withand rotate said ratchet wheel in either direction and projections Vonopposite surfaces of` the lever, such lever being adapted to be pivotedto the arm with either of said surfaces adjacent theretoV and with oneof said projections infposition to engage with such arm. Y

7. The combinationf .with .a shaft, of a rachet wheel fixed thereon, anarm pivotedy concentrically to the shaft, a pivot carried by said armand disposedV transversely to the shaft, a member .mounted upon saidpivot to turn thereon, a second pivot carriedhy said member and disposedsubstantially parallel to .theshaft and a leverinounted upon the secondpivot to turn thereon, such Ylever being adaptedfto engage andA rotatesaid ratchet wheel in either direction.

In testimony whereof, I 4havesigned my name to this specification, inthepresence of two-subscribing witnesses.`

WINFIELD HANCOCK YOST.

Vitnesses: f

ALEX Comun, JAMES A., FRASER.

ve cents each, foyY addressing .the ,Commssionernflatents. Washington,D. C.

